Can impetigo leave scars on the skin?

Impetigo, a superficial bacterial skin infection, typically heals without leaving permanent scars on the skin [2]. However, a deeper form of the infection known as ecthyma, which resembles impetigo but penetrates deeper into the skin, may lead to permanent skin damage and scarring [3].

Impetigo is a common skin infection, especially among children between two and six years old [1]. The infection usually begins with red sores or blisters that resemble pimples, which fill with pus and then rupture after a few days to form a thick, honey-colored crust [1]. These crusts generally heal without leaving any permanent marks [2].

The difference between impetigo and ecthyma

The main difference between impetigo and ecthyma lies in the depth of the infection. Impetigo is a superficial infection affecting the outer layers of the skin [1], whereas ecthyma penetrates deeper into the skin, which is why it is sometimes referred to as deep impetigo [3]. Ecthyma usually begins with small blisters with red borders that may be filled with pus, but after the blister clears, a crusted ulcer appears [3].

Risk factors that increase the likelihood of scarring

Although impetigo does not usually cause scarring, there are factors that may increase the risk of scarring, particularly in cases of ecthyma. Individuals with a weakened immune system or diabetes are more susceptible to developing ecthyma [3]. Additionally, scratching or picking at the sores and crusts can worsen the infection and increase the likelihood of skin damage and scarring [1].

Preventing scarring and skincare

To reduce the risk of scarring, it is important to follow these guidelines:

• Early treatment: Treatment of impetigo with antibiotics prescribed by a doctor should begin as soon as symptoms appear. Antibiotics may be topical (applied to the sores) or oral (taken by mouth), depending on the severity of the infection and the number of sores [2].
• Avoid scratching: Although impetigo sores may be itchy, you must avoid scratching them, as this can spread the infection and increase the risk of skin damage [1].
• Good hygiene: Maintaining skin hygiene after any injury, such as scratches or insect bites, can help prevent the infection from developing [3].
• Gently removing crusts: Applying a warm, moist cloth to the affected area can help remove ecthyma crusts [3].

When should you consult a doctor?

If you suspect you have impetigo or ecthyma, it is important to consult a healthcare provider. A doctor can typically diagnose the condition simply by examining the skin [2]. Antibiotic treatment is necessary to control the infection, prevent its spread, and reduce the risk of complications [2]. For more information on preventing the spread of impetigo, you can visit the page Impetigo: A common skin infection in children and ways to prevent its spread (Arabic).

Medical references

• Impetigo
• About Impetigo
• Ecthyma